Fastener for window screens and storm sashes



May 24, 1949. c. MacDONALD FASTENER FOR WINDOW SCREENS AND STORM SASHES Filed Aug. 1, 1947 Patented May 24, 1949 UNITED STATES PATENT 'FFECE Lester Curtis MacDonald, Hamilton, Ontario, Canada Application August 1, 1947, Serial No. 765,372

1 Claim. 1

This invention relates to improvements in screen and storm sash fasteners. Such auxiliary sash is usually applied to the window frame at least partially by hooks and eyes. These appurtenances are unsightly and moreover, unless they are affixed too loosely to be serviceable, are difficult to latch and unlatch. Since, therefore, a hammer is usually used to get the retaining hump of the hook past the eye in either direction the hook and eye screws soon become loose in the wood, and there their usefulness ends.

One important object is to provide fasteners for screen and storm sash which for the most part is unobservable, and the exposed portion neither unsightly nor particularly noticeable.

Another important object is to provide a device of the kind specified which will be extremely simple, durable and effective, easy to apply and to use, and inexpensive to produce and to purchase.

With the above and other objects in view as will be hereinafter apparent, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings and specifically claimed.

In the accompanying drawings like characters of reference indicate like parts in the several views, and:

Figure l is a side elevation of a screen or storm sash fastener shown as attached to a screen sash and window frame, the latter conventional structure being in fragment form and with the main window sash removed.

Figure 2 is an end view of the improved fastening device and an inner face view of the frame and sash structure of Figure 1.

Figure 3 is a side elevation showing certain elements unfastened to permit removal of the sash.

In its present embodiment the invention consists of a horizontally disposed pin or bolt I U, the helical spring I2 and the pivoted keeper ['3. In first applying the fastener a hole It is drilled through the stile iii of the screen or storm sash from the inner face thereof, and a registering socket l6 conforming to the hole 14 is made in the stile ll of the window frame also from the inner face thereof. Thus the hole l4 and the socket l5 together provide a sleeve for the pin l0 which is of such a length as to fully occupy the hole l4 and partially the socket l6.

Back of the pin ID in the remaining portion of the socket I6 is the helical spring l2 which is compressed when the pin I'D is pushed fully into the sleeve and the keeper [3 closed against it. Thus when the fastener is functioning as such the spring [2 urges the pin ll] outwardly but the pin is prevented from disengaging the socket by the keeper l3 in closed position, as seen, and the portion of the pin lying in the socket retains the sash in position. Consistently there are four such fasteners to the window.

When the sash is to be removed the keeper I3 is merely swung aside and the pin pops out under the urge of the spring just far enough as to be conveniently grasped by the fingers for final extraction, the spring being arranged in tension to merely drive the pin out of the socket but not out of the hole, and the spring also being arranged so that when fully expanded after impelling the pin from the socket it will itself remain wholly within the socket and not protrude.

Usually when screen are removed from a window the application of the storm sash immediately follows, and vice versa. Obviously each will have its holes drilled in registry with the sockets, and it is therefore evident that the transfer may be efiected by merely pulling the pins in the manner aforesaid and reinserting them proceeding also as set forth.

There has thus been provided a simple and efficient device of the kind described and for the purpose specified.

It is obvious that minor changes may be made in the form and construction of the invention without departing from the material spirit thereof. It is not, therefore, desired to confine the invention to the exact'form herein shown and described, but it is desired to include all such as properly come within the scope claimed.

I claim:

In a fastener for screen and storm sash and the like, a pin adapted to slide back and forth in a sleeve which is constituted by a hole through a stile of the sash and a registering socket in the stile of the window frame, said pin being arranged in length to fully occupy said hole but only partially said socket, a keeper arranged to close the opening into said hole against egress of the pin, and a spring in said socket back of the pin and arranged to urge the pin entirely out of the socket on removal of the keeper from the hole entrance but not to itself leave the socket.

LESTER CURTIS MACDONALD.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 836,976 Johnson Nov. 2'7, 1906 1,125,356 Lynn Jan. 19, 1915 

